Interactive Brokers (and probably most other online stock brokers) do not allow one to open a long trade as well as a short trade on a stock independently. Example, you bought 1000 shares of stock XYZ at $10 and the stock drops tp $7 and you want to open a separate short trade of 1000 shares of the stock at $7 without closing the buy trade, you are not able to. Once you put in the short trade of 1000 shares at $7, IB treats it as you are closing the original long trade and thus close the trade for a loss of -$3 x 1000 shares. Is there a way to open the short trade without original long trade being closed (and vice versa), or anyone knows a broker that carry a huge list of US stocks like IB that allows what I am after? Thank you